Warning: Your Navien boiler has a communication issue, causing it to shut down. It's safe to troubleshoot, but call a professional if needed.
How to Fix Navien Code E615
Step 1: Check if the boiler has power. Look for the 'ON/OFF' switch and ensure it's in the 'ON' position.
Step 2: Try a power reset. Turn off the boiler at the switch, wait 30 seconds, then turn it back on.
Step 3: If the error persists, call a professional HVAC technician. Do not attempt to open the boiler or tamper with internal components.
How to Reset Navien Code E615
Turn off the unit using the power button on the front panel.
Turn off the gas supply valve.
Turn off the circuit breaker supplying power to the unit. Wait 30 seconds.
Restore power at the breaker, then open the gas valve.
Turn the unit back on. If the error returns, the underlying issue needs repair.
What does E615 mean?
The E615 error on your Navien boiler indicates a PCB (Printed Circuit Board) communication failure. This means that the control board can't communicate properly with other components, causing your boiler to shut down. This issue is typically not caused by a faulty PCB itself, but rather a problem with the communication lines or other connected components.